Categories: Malware

About “Malware.AI.3983838791” infection

The Malware.AI.3983838791 is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Malware.AI.3983838791 virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • At least one process apparently crashed during execution
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Enumerates the modules from a process (may be used to locate base addresses in process injection)
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Installs itself for autorun at Windows startup
  • Likely virus infection of existing system binary
  • Attempts to bypass application whitelisting by executing .NET utility in a suspended state, potentially for injection

How to determine Malware.AI.3983838791?


File Info:

name: 8C6AE72E9883DCEE98FE.mlwpath: /opt/CAPEv2/storage/binaries/71af73f82ef9ef697f78969f4e4509acf9a342ff745b62f05404ca846c9c8dcbcrc32: 19DF6A88md5: 8c6ae72e9883dcee98fe33e1c7b5a571sha1: 3ba32b21bf595cdc78266c1ab48e5c2119d26e12sha256: 71af73f82ef9ef697f78969f4e4509acf9a342ff745b62f05404ca846c9c8dcbsha512: 7441d313253738c6032223aa36e230983dc9651bd7284ca9d57afab59946d3c75a06f5fd96f684112d142b29366124f48873e0e62cf3e371c37f40c3e3b9dcc1ssdeep: 12288:AS6SX/Cfm7DRDGDZVbRWwZDq3JO3JZDUEA:AS6SXs6I3RpqM2Btype: PE32 executable (console) Intel 80386, for MS Windowstlsh: T12CE49C43B20505F0CBA530712AEAFB74A57D3E73EE14A9C4AAD5BC3B1875AC0641C9F9sha3_384: ca10317b6f47f22a8e33661309218c603e0d03e6ad2f4caff621508f3d6189703c31182a93613b5a0912afb72fe2924eep_bytes: 5150528d0d18000000648b0101c801c8timestamp: 2010-10-10 16:22:54

Version Info:

CompanyName: Microsoft CorporationFileDescription: Windows Command ProcessorFileVersion: 6.1.7601.17514 (win7sp1_rtm.101119-1850)InternalName: cmdLegalCopyright: © Microsoft Corporation. All rights reserved.OriginalFilename: Cmd.ExeProductName: Microsoft® Windows® Operating SystemProductVersion: 6.1.7601.17514Translation: 0x0409 0x04b0

Malware.AI.3983838791 also known as:

Bkav W32.AIDetect.malware2
Lionic Virus.Win32.Expiro.n!c
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
FireEye Generic.mg.8c6ae72e9883dcee
ALYac Win32.Expiro.Gen.6
Cylance Unsafe
VIPRE Virus.Win32.Expiro.dp (v)
K7AntiVirus Trojan ( 00561cbf1 )
Alibaba Virus:Win32/Expiro.f711612e
K7GW Trojan ( 00561cbf1 )
Cybereason malicious.e9883d
Cyren W32/Expiro.AN.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Expiro.NDG
APEX Malicious
Avast Win32:Xpirat-C [Inf]
Kaspersky UDS:Trojan.Win32.Bingoml
BitDefender Win32.Expiro.Gen.6
NANO-Antivirus Virus.Win32.Gen.ccmw
MicroWorld-eScan Win32.Expiro.Gen.6
Tencent Win32.Virus.Expiro.Ecko
Ad-Aware Win32.Expiro.Gen.6
Sophos Mal/Generic-S + Mal/EncPk-MK
McAfee-GW-Edition BehavesLike.Win32.Expiro.jh
Emsisoft Win32.Expiro.Gen.6 (B)
Paloalto generic.ml
GData Win32.Expiro.Gen.6
Avira TR/Patched.Gen
Gridinsoft Ransom.Win32.Wacatac.sa
Arcabit Win32.Expiro.Gen.6
Microsoft Trojan:Win32/Raccoon.EC!MTB
Acronis suspicious
MAX malware (ai score=88)
VBA32 BScope.Trojan.Wacatac
Malwarebytes Malware.AI.3983838791
SentinelOne Static AI – Malicious PE
Fortinet W32/Expiro.NDG
AVG Win32:Xpirat-C [Inf]
CrowdStrike win/malicious_confidence_90% (W)

How to remove Malware.AI.3983838791?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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